Maria Theresa (1717–1780) was once the most powerful woman in Europe. At the age of twenty-three, she ascended to the throne of the Habsburg Empire, a far-flung realm composed of diverse ethnicities and languages, beset on all sides by enemies and rivals. Barbara Stollberg-Rilinger provides the definitive biography of Maria Theresa, situating this exceptional empress within her time while dispelling the myths surrounding her. Drawing on a wealth of archival evidence, Stollberg-Rilinger examines all facets of eighteenth-century society, from piety and patronage to sexuality and childcare, ceremonial life at court, diplomacy, and the everyday indignities of warfare. She challenges the idealized image of Maria Theresa as an enlightened reformer and mother of her lands who embodied both feminine beauty and virile bellicosity, showing how she despised the ideas of the Enlightenment, treated her children with relentless austerity, and mercilessly persecuted Protestants and Jews. Work, consistent physical and mental discipline, and fear of God were the principles Maria Theresa lived by, and she demanded the same from her family, her court, and her subjects. A panoramic work of scholarship that brings Europe’s age of empire spectacularly to life, Maria Theresa paints an unforgettable portrait of the uncompromising yet singularly charismatic woman who left her enduring mark on the era in which she lived and reigned.